Test on Aircraft Structures and Systems
Aircraft Structures and Systems: A Student's Guide
Test: Structures, Corrosion & Maintenance — Airframe Systems & Design, Structures, Corrosion & Maintenance — Airframe Structural Components, Structures, Corrosion & Maintenance — Materials, Corrosion & Protection, Structures, Corrosion & Maintenance — Loads & Design Philosophy, Structures, Corrosion & Maintenance — Inspection, Damage & Maintenance, Aircraft Landing Gear Systems, Wheels, Tyres & Inflation, Cabin, Seating & Crew Accommodation, Weight & Limits, Integrated Systems & Safety — Systems, Integrated Systems & Safety — Safety & Certification, Flight Controls Maintenance & Inspection, Aircraft Hydraulics Systems, Aircraft Hydraulics Components, Aircraft Pneumatic Systems, Landing Gear Hydraulics & Retraction, Aircraft Brakes & Anti-Skid, Flight Controls Systems, Aircraft Environmental & Pneumatic Systems, Aircraft Pressurization & Control Systems, Ice Protection Systems, Propeller Ice Protection, Fire Detection & Smoke Protection, Fire Detection & Suppression, Fire Suppression Equipment, Aircraft Handling & Aerodynamics, High-Lift Systems and Devices, Primary & Secondary Flight Controls, Flight Control Trim & Balancing, Powered Flight Control Systems, Aircraft Oxygen Systems, Supplemental Oxygen Systems, Fuel Systems, Refuelling & Safety, Reference Materials & Exam Answer Keys
20 questions
Question 1: In a continuous flow oxygen system, the flow indicator is designed to show precisely how much oxygen is flowing to the user.
A. Ano
B. Ne
Explanation: Flow indicators in a continuous flow oxygen system show that oxygen is flowing through the regulator, but they do not show how much is flowing or if the user is being supplied with sufficient oxygen.
Question 2: Which of the following are crucial safety precautions to observe when handling or maintaining aircraft oxygen systems?
A. Ensuring all tools and protective clothing are free from oil and grease.
B. Using only aviation-approved oxygen to prevent corrosion and valve freezing.
C. Prohibiting smoking and removing combustible materials from oxygen recharging areas.
D. Storing oxygen cylinders in poorly ventilated areas since oxygen is heavier than air.
Explanation: The study materials state that no oil or grease should come into contact with oxygen to prevent severe chemical reactions and spontaneous combustion. It also emphasizes that only aviation-approved oxygen should be used to avoid corrosion and valve freezing caused by moisture. Furthermore, smoking is banned and combustible materials must be removed from oxygen-rich atmospheres and recharging operations because oxygen supports combustion. The material explicitly states that the surrounding area must be adequately ventilated during replenishment or maintenance, as oxygen is heavier than air and will fill low lying areas, making poorly ventilated areas dangerous, not safe for storage.
Question 3: An operator is permitted to operate a non-pressurised aeroplane at an altitude of 10 000 ft without supplemental oxygen equipment.
A. Ano
B. Ne
Explanation: According to OPS 1.775 (a) 1, an operator shall not operate a non-pressurised aeroplane at altitudes above 10 000 ft unless supplemental oxygen equipment is provided. This implies that operation at 10 000 ft or below does not require supplemental oxygen equipment.
Question 4: According to the provided materials, what are the supplemental oxygen duration requirements for all required cabin crew members in a pressurised aeroplane?
A. Entire flight time when the cabin pressure altitude exceeds 13 000 ft, but not less than 30 minutes.
B. Entire flight time when cabin pressure altitude is greater than 10 000 ft but does not exceed 13 000 ft, after the first 30 minutes at these altitudes.
C. Entire flight time when the cabin pressure altitude exceeds 15 000 ft, but in no case less than 10 minutes.
D. For aeroplanes not certificated to fly above 25 000 ft, if able to descend safely to 13 000 ft within four minutes, the supply may be reduced to the entire flight time between 10 000 ft and 13 000 ft cabin pressure altitudes.
Explanation: The study materials in Appendix 1 to OPS 1.770, Table 1, row 2 state that all required cabin crew members need oxygen for the 'Entire flight time when cabin pressure altitude exceeds 13 000 ft but not less than 30 minutes' and 'entire flight time when cabin pressure altitude is greater than 10 000 ft but does not exceed 13 000 ft after the first 30 minutes at these altitudes'. Additionally, paragraph (b)2(v) states a reduction where, for aeroplanes not certificated to fly above 25 000 ft and capable of descending safely to 13 000 ft within four minutes, the supply for all required cabin crew members may be reduced to the 'entire flight time between 10 000 ft and 13 000 ft cabin pressure altitudes'. Option 2 refers to requirements for passengers, not cabin crew.
Question 5: Refuelling an aircraft with passengers on board is not permissible if AVGAS is being used.
A. Ano
B. Ne
Explanation: The study materials state under 'Question Paper 2' question 9 that 'Refuelling with passengers on board is not permissible: b. if AVGAS is being used', with option 'd. in any of the above cases' being the correct answer. This confirms that using AVGAS makes refuelling with passengers on board impermissible.